- 摘 要
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（山東建筑大學土木工程學院，濟南 250101）
［摘要］單純采用鋼筋網(wǎng)水泥砂漿面層加固磚墻，其抗震能力提高有限，為了進一步提高磚墻抗震性能，提出了采用增設鋼筋混凝土-砌體組合構(gòu)造柱與鋼筋網(wǎng)水泥砂漿面層共同加固的加固方法。通過對9個加固試件進行了擬靜力試驗，分析了其破壞過程、破壞機理、滯回性能、延性及承載力等，結(jié)果表明：采用鋼筋混凝土-砌體組合構(gòu)造柱與鋼筋網(wǎng)水泥砂漿面層共同加固的磚墻破壞形態(tài)主要表現(xiàn)為彎曲破壞，并且其延性、耗能特性和承載力均有顯著提高；試件的高寬比、配筋率及軸壓比對試件的延性、開裂剛度和承載力均有一定影響；可參照鋼筋混凝土剪力墻計算其正截面承載力，計算時僅考慮組合構(gòu)造柱內(nèi)縱向鋼筋作用，不考慮鋼筋網(wǎng)豎向鋼筋作用，且計算時受壓區(qū)應考慮由不同材料組成，最后提出了鋼筋混凝土-砌體組合構(gòu)造柱與鋼筋網(wǎng)水泥砂漿面層共同加固墻體的水平承載力計算公式。
［關(guān)鍵詞］砌體結(jié)構(gòu)；組合構(gòu)造柱；鋼筋網(wǎng)水泥砂漿面層；抗震加固；擬靜力試驗；抗震性能
中圖分類號：TU362文獻標識碼：A文章編號：1002-848X(2020)24-0085-06
Experimental study on the seismic performance of the brick walls jointly strengthened by reinforced concrete-masonry combination structural columns and steel-meshed cement mortar surface
ZHAO Kaozhong, WANG Fei, CHEN Yixiao
（School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China）
Abstract:The improvement of seismic performance of brick wall strengthened with steel-meshed cement mortar surface is limited. In order to further improve the seismic performance of the brick wall, the reinforcement method of using additional reinforced concrete-masonry combination structural columns and steel-meshed cement mortar surface was proposed.Based on the quasi-static test of 9 strengthened brick walls, the failure process, failure mechanism, hysteretic performance, ductility and bearing capacity were analyzed. The results show that the failure mode of brick wall jointly strengthened by reinforced concrete-masonry combination structural columns and steel-meshed cement mortar surface is bending failure, and its ductility, energy consumption characteristics and bearing capacity are significantly improved;the aspect ratio, reinforcement ratio and axial compression ratio of specimens have certain influence on the ductility, cracking stiffness and bearing capacity of specimens; the normal section bearing capacity can be calculated with reference to reinforced concrete shear wall, and only the longitudinal reinforcement action in the combination structural columns was considered in the calculation, and the vertical steel-meshed was not considered, and the compression zone should be considered to be composed of different materials, the formula for calculating the horizontal bearing capacity of the wall jointly strengthened by reinforced concrete-masonry combination structural columns and steel-meshed cement mortar surface was derived in the end.
Keywords:masonry structure； combination structural column； steel-meshed cement mortar surface； seismic reinforcement; quasi-static test; seismic performance
作者簡介：趙考重，碩士，教授，碩士生導師，Email：13705319335@163.com。
